QuestionsHow many Stone Age people have crossed from Asia to North America? (explain)What was one problem that made migrating to norther Asia difficult? (recall)What kind of evidence could provide more information about how people reach Australia? (predict)How did the ice ages influence humans migration? (analyze)Why did early humans build shelters? (explain)What types of shelters did early people use? (recall)How did new techniques change the daily lives of Middle Stone Age people? (elaborate)What were two ways people adapted to new environments? (main idea)